CA1230496A - Detecteur de pression differentielle - Google Patents

Detecteur de pression differentielle

Info

Publication number
CA1230496A
CA1230496A CA000481570A CA481570A CA1230496A CA 1230496 A CA1230496 A CA 1230496A CA 000481570 A CA000481570 A CA 000481570A CA 481570 A CA481570 A CA 481570A CA 1230496 A CA1230496 A CA 1230496A
Authority
CA
Canada
Prior art keywords
orifice
differential pressure
pressure sensor
diaphragm
stem
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000481570A
Other languages
English (en)
Inventor
Patrick A. Jenkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borg Warner Corp filed Critical Borg Warner Corp
Application granted granted Critical
Publication of CA1230496A publication Critical patent/CA1230496A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • G01F1/383—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Volume Flow (AREA)
CA000481570A 1984-06-08 1985-05-15 Detecteur de pression differentielle Expired CA1230496A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/618,667 US4555952A (en) 1984-06-08 1984-06-08 Differential pressure sensor
US618,667 1984-06-08

Publications (1)

Publication Number Publication Date
CA1230496A true CA1230496A (fr) 1987-12-22

Family

ID=24478642

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000481570A Expired CA1230496A (fr) 1984-06-08 1985-05-15 Detecteur de pression differentielle

Country Status (6)

Country Link
US (1) US4555952A (fr)
EP (1) EP0164240A3 (fr)
JP (1) JPS614934A (fr)
KR (1) KR860000550A (fr)
AU (1) AU4252285A (fr)
CA (1) CA1230496A (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831885A (en) * 1986-04-28 1989-05-23 Dahlin Erik B Acoustic wave supressor for Coriolis flow meter
US4719791A (en) * 1986-12-05 1988-01-19 Ets, Inc. Individual filter bag monitoring system for baghouses
US4757718A (en) * 1987-03-23 1988-07-19 Borg-Warner Automotive, Inc. De-icer for a transducer assembly
GB2240397A (en) * 1990-01-27 1991-07-31 Dobson Park Ind Capacitive transducer
DE4111139A1 (de) * 1991-04-06 1992-10-08 Draegerwerk Ag Gasverhaeltnisregelvorrichtung fuer narkosegeraete
JP3106805B2 (ja) * 1993-10-14 2000-11-06 富士電機株式会社 圧力差測定方法及び変位変換装置
DE4437207C1 (de) * 1994-10-18 1996-01-04 Draegerwerk Ag Gasverhältnisregelvorrichtung für Narkosegeräte
US5763764A (en) * 1995-01-06 1998-06-09 Snap-On Technologies, Inc. Evaporative emission tester
US5577399A (en) * 1995-04-03 1996-11-26 General Electric Company Pressure sensor for appliance products
FR2775784B1 (fr) * 1998-03-05 2000-05-12 Francois Lafay Dispositif de detection de fuites pour installation d'adduction d'eau
US6308694B1 (en) * 1999-01-11 2001-10-30 Ford Global Technologies, Inc. Flow measurement and control
US6138504A (en) * 1998-06-04 2000-10-31 Ford Global Technologies, Inc. Air/fuel ratio control system
US6826966B1 (en) * 2000-08-09 2004-12-07 Honeywell International Inc. Flow sensor package
US6874375B1 (en) 2003-04-08 2005-04-05 Piotless nozzle
EP1682859A4 (fr) * 2003-08-11 2007-08-22 Analog Devices Inc Capteur capacitif
US7204150B2 (en) * 2005-01-14 2007-04-17 Mks Instruments, Inc. Turbo sump for use with capacitive pressure sensor
JP4657867B2 (ja) * 2005-09-27 2011-03-23 セイコーインスツル株式会社 マイクロリアクター及びマイクロリアクターシステム
US7554666B2 (en) 2006-05-25 2009-06-30 Ric Investments, Llc. Sensor with optical pressure transducer and method of manufacturing a sensor component
US7938105B2 (en) * 2007-09-25 2011-05-10 Ford Global Technologies, Llc High flow (delta P) differential pressure EGR system with provision for both flow control and OBD monitor
US7845235B2 (en) * 2007-11-06 2010-12-07 Costin Sandu Non-invasive system and method for measuring vacuum pressure in a fluid
DE102009024576B4 (de) * 2009-05-13 2011-04-07 Trafag Ag Differenzdrucksensor
GB0908982D0 (en) * 2009-05-26 2009-07-01 David Brown Hydraulics Ltd Controlled hydraulic systems
US20110232614A1 (en) * 2009-09-25 2011-09-29 Cummins Intellectual Properties , Inc. System for measuring egr flow and method for reducing acoustic resonance in egr system
DE102011056357A1 (de) * 2011-12-13 2013-06-13 Windmöller & Hölscher Kg Messvorrichtung für die Bestimmung des Volumenstroms von Leim in einer Beleimungsvorrichtung
US8938961B2 (en) 2011-12-30 2015-01-27 Caterpillar Inc. EGR flow sensor for an engine
US8701497B2 (en) 2012-03-22 2014-04-22 Frederick H. Grenning Fluid flow testing system
US11406415B2 (en) 2012-06-11 2022-08-09 Tenex Health, Inc. Systems and methods for tissue treatment
US8899105B2 (en) * 2012-08-29 2014-12-02 Goutham R. Kirikera Slim capacitance sensor for downhole applications
US9962181B2 (en) 2014-09-02 2018-05-08 Tenex Health, Inc. Subcutaneous wound debridement
GB2549286B (en) * 2016-04-11 2019-07-24 Perkins Engines Co Ltd EGR valve with integrated sensor
US10107656B1 (en) 2017-10-18 2018-10-23 Frederick H. Grenning Flow-rate measurement nozzle with velocity pressure pickup channel
CN110587303B (zh) * 2019-10-18 2021-01-26 重庆前卫科技集团有限公司 一种提高膜式燃气表计量精度的装配方法
ES1266233Y (es) * 2021-01-19 2021-07-28 Albina Lopez De Armentia Inigo Racor para medida de caudales y volúmenes y detección de consumo en hidrantes, bocas de riego o cualquier tipo de toma

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407903C (de) * 1925-01-05 Erich Roucka Einrichtung zur Messung von physikalischen oder chemischen Groessen
US2406181A (en) * 1943-01-14 1946-08-20 Wright Aeronautical Corp Flowmeter
US2509078A (en) * 1945-06-29 1950-05-23 Stover Emory Frank Fluid meter
US3047022A (en) * 1958-12-24 1962-07-31 Taylor Instrument Co Pressure responsive device
US3245266A (en) * 1965-02-11 1966-04-12 Electro Mechanical Res Inc Pressure transducers
IL31278A (en) * 1968-12-16 1972-12-29 Technion Res & Dev Foundation Differential pressure measuring device
US3859575A (en) * 1974-02-11 1975-01-07 Lee Shih Ying Variable capacitance sensor
SE412956B (sv) * 1974-04-04 1980-03-24 Rosemount Inc Kapacitiv avkenningsanordning
CA1038644A (fr) * 1974-04-04 1978-09-19 Rosemount Inc. Cellule a charge capacitive
US3968693A (en) * 1975-05-21 1976-07-13 Fischer & Porter Co. Open-loop differential-pressure transmitter
GB1572814A (en) * 1977-04-07 1980-08-06 Robertshaw Skil Ltd Pressure sensing
US4125027A (en) * 1977-11-04 1978-11-14 Geophysical Research Corporation Gauge for remotely indicating the pressure of a subterranean formation
US4168517A (en) * 1977-11-10 1979-09-18 Lee Shih Y Capacitive pressure transducer
US4382385A (en) * 1980-04-17 1983-05-10 Paroscientific, Inc. Digital differential pressure transducer
US4382377A (en) * 1980-05-16 1983-05-10 Siemens Aktiengesellschaft Pressure sensor for an internal combustion engine

Also Published As

Publication number Publication date
US4555952A (en) 1985-12-03
KR860000550A (ko) 1986-01-29
JPS614934A (ja) 1986-01-10
AU4252285A (en) 1985-12-12
EP0164240A2 (fr) 1985-12-11
EP0164240A3 (fr) 1987-06-24

Similar Documents

Publication Publication Date Title
CA1230496A (fr) Detecteur de pression differentielle
US6295875B1 (en) Process pressure measurement devices with improved error compensation
US5447073A (en) Multimeasurement replaceable vortex sensor
EP1883798B1 (fr) Capteur de pression utilisant un corps de capteur compressible
US5186054A (en) Capacitive pressure sensor
JP5394564B2 (ja) 真空誘電体を有する静電容量式圧力センサ
CA2455694C (fr) Capteur de pression
CA1239806A (fr) Sonde capacitive faite de matiere frangible
JPS6227636A (ja) 圧力変換器
US9470594B2 (en) Differential pressure sensor with dual output using a double-sided capacitive sensing element
US4433580A (en) Pressure transducer
US5357806A (en) Capacitive differential pressure sensor and method of measuring differential pressure at an oil or gas well
US20180172534A1 (en) Pressure detecting device
US5034848A (en) Low pressure sensor
JPH0629821B2 (ja) 複合機能形差圧センサ
US6722205B2 (en) Unitary pressure sensor housing and assembly
JPH10197316A (ja) 密度補正形液面検出装置
CN1170116C (zh) 非接触式电容复合电极型位移传感器及测量仪
CA2490262A1 (fr) Ensemble et logement de capteur de pression
WO2021133481A1 (fr) Capteur de pression différentielle à large portée
JPH08320269A (ja) 圧力検出装置
JP2006514265A (ja) 圧力センサハウジングおよびアセンブリ

Legal Events

Date Code Title Description
MKEX Expiry